Benchmark Class Review

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

father of genetics

• Gregor Mendel
• James Watson
• Dr. Robbins
• Francis Crick

Which is the correct phenotype for this organism?

• BB
• blue
• green
• bb

A red flower (Rr) is crossed with a white flower (rr). What is the genotypic ratio?

• 0 RR; 0 Rr: 4 rr

• 2 RR; 0 Rr: 2 rr

• 4 RR; 0 Rr: 0 rr

• 0 RR; 2 Rr: 2 rr

How many phenotypes are there in ABO blood types?

• 3
• 4
• 6
• 12

If you cross a red snapdragon with a white snapdragon, only pink snapdragons will be produced.  What type of inheritance pattern does this follow?

• Complete Dominance
• Incomplete Dominance
• Co-Dominance
• Sex-linked

This is an example of ___________?

• Incomplete dominance

• Co-Dominance

• Sex-linked inheritance

• Autosomal recessive inheritance

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine